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  1. Preface
  2. Using the Designer
  3. Working with Sources
  4. Working with Flat Files
  5. Working with Targets
  6. Mappings
  7. Mapplets
  8. Mapping Parameters and Variables
  9. Working with User-Defined Functions
  10. Using the Debugger
  11. Viewing Data Lineage
  12. Comparing Objects
  13. Managing Business Components
  14. Creating Cubes and Dimensions
  15. Using the Mapping Wizards
  16. POWERCENTERHELP
  17. Datatype Reference
  18. Configure the Web Browser

Connection Validation

Connection Validation

The Designer performs connection validation each time you connect ports in a mapping and each time you validate or save a mapping. When you connect ports, the Designer verifies that you make valid connections. When you save or validate a mapping, the Designer verifies that the connections are valid and that all required ports are connected. When you save or validate a mapping, the Designer makes the following connection validations:
  • At least one source and one target must be connected.
  • Source qualifiers must be mapped to a target.
  • Mapplets must be connected.
    At least one mapplet input port and output port is connected to the mapping. If the mapplet includes a source qualifier that uses an SQL override, the Designer prompts you to connect all mapplet output ports to the mapping.
  • Datatypes between ports must be compatible.
    If you change a port datatype to one that is incompatible with the port it is connected to, the Designer generates an error and invalidates the mapping. For example, you have two Date/Time ports connected, and you change one port to a Decimal. The Designer invalidates the mapping. You can however, change the datatype if it remains compatible with the connected ports, such as Char and Varchar.


Updated June 25, 2018